The Green Dragons, winners of the last three Div. 2 titles, will try to make it four state championships in a row Sunday when they meet AC at TD Garden.

Eric McHugh The Patriot Ledger

KINGSTON – Over the last three years, Arlington Catholic (Division 1) and Duxbury (formerly Div. 2) have dominated their respective girls high school hockey divisions, combining for a whopping five MIAA championship-game appearances.

Before this winter, Duxbury, winners of the last three Div. 2 crowns, could only admire Div. 1 Arlington Catholic from afar. The Cougars (19-2-2) won their championship in 2012, beating St. Mary’s (Lynn). AC made it back to the Div. 1 title game last year, this time losing to the Spartans.

Now, following Duxbury’s elevation to Div. 1 this winter, two powerhouses find themselves pitted against each other, perhaps for a definitive answer as to which squad is more deserving of a “dynasty” moniker.

Naturally, nobody knows the work it takes to beat a champion like another champion.

“The key is to play mistake-free hockey,” Duxbury coach Friend Weiler said of the key to beating Arlington Catholic. “We’re going to have to play our best game of the year to be able to compete.”

Weiler described the opposition as “a deep, talented, disciplined, well-coached team that works hard.”

On paper, that talent starts with junior forward Adrieanna Rossini of Melrose, who leads the Cougars in scoring with 30 goals and 45 points. “She’s very dangerous in front of the net, quick with the puck,” Weiler said. “She’s one of the most talented girls it the state. Let’s hope we can contain her.”

Another solid performance from senior goalie Rachel Myette could very well be mandatory for the Green Dragons to slow down AC, which is a sizzling 15-0-1 since losing to Ursuline on Jan. 8. The lone tie in the streak was a 2-2 draw with Duxbury on Feb. 20.

Luckily for her teammates, Myette has proven to be as clutch as they come in the postseason. The netminder is currently riding a seven-game playoff shutout streak (four last year in the Div. 2 playoffs, three this year).

Overall, Myette has yet to allow multiple goals in any of her 15 career playoff appearances, including four postseason starts as a freshman.

No one in Div. 2 was able to solve her, but the Dragons know AC won’t be intimidated.

“They are just like us,” senior forward Liz Collins said. “They’re a third-period team, and they know when to step up to the occasion. They know when it’s their time, and that’s going to be something we definitely have to fight with.”

If anyone were to suspect Duxbury of feigning respect to avoid giving AC bulletin-board material, those thoughts would be put to rest after seeing the urgency with which the Green Dragons have been practicing all week here at The Bog.

Weiler has made the team run multiple sets of “Herbies” – an exhausting conditioning drill named after legendary “Miracle on Ice” coach Herb Brooks.

Sounds about right for a team whose five senior leaders collectively listed “hard work,” and “high-tempo play” as keys to Sunday’s game.